Chapter 13: Troubleshooting and Technical Support

 

Problem/Message

 

 

Reason

 

 

Solution

 

 

 

 

 

 

 

 

You can ping the device server,

 

There may be an IP

 

Turn the device server off and

 

but not Telnet to the device server

 

address conflict on your

 

then issue the following

 

on port 9999.

 

network

 

commands at the DOS prompt

 

 

 

 

You are not Telneting to

 

of your computer:

 

 

 

 

 

 

 

 

 

 

 

port 9999.

 

ARP -D X.X.X.X (X.X.X.X is the

 

 

 

 

The Telnet configuration

 

IP of the device server).

 

 

 

 

 

 

 

 

 

 

 

port (9999) is disabled

 

PING X.X.X.X (X.X.X.X is the

 

 

 

 

within the device server

 

IP of the device server).

 

 

 

 

security settings.

 

If you get a response, then

 

 

 

 

 

 

 

there is a duplicate IP address

 

 

 

 

 

 

 

on the network. If you do not

 

 

 

 

 

 

 

get a response, use the serial

 

 

 

 

 

 

 

port to verify that Telnet is not

 

 

 

 

 

 

 

disabled.

 

 

 

 

 

 

 

The device server appears to be

 

If you are sure that the

 

Use the Connect Mode option

 

set up correctly, but you are not

 

serial port setting is

 

C0 for making a connection to

 

communicating with your device

 

correct, then you may not

 

the device server from the

 

attached to the device server

 

be connecting to the

 

network. Use Connect Mode

 

across the network.

 

correct socket of the

 

option C1 or C5 for a

 

 

 

 

device server.

 

connection to the network from

 

 

 

 

Another possibility is that

 

the device server.

 

 

 

 

 

 

 

 

 

 

 

the device server is not

 

 

 

 

 

 

 

set up correctly to make a

 

 

 

 

 

 

 

good socket connection to

 

 

 

 

 

 

 

the network.

 

 

 

 

 

 

 

 

 

 

When connecting to the Web

 

Your computer is not able

 

Make sure that port 30718

 

Manager within the device server,

 

to connect to port 30718

 

(77FEh) is not blocked with any

 

the "No Connection With The

 

(77FEh) on the device

 

router that you are using on the

 

Device Server" message displays.

 

server.

 

network. Also, make sure that

 

 

 

 

 

 

 

port 77FEh is not disabled

 

 

 

 

 

 

 

within the Security settings of

 

 

 

 

 

 

 

the device server.

 

 

 

 

 

 

 

 

 

XPress DR+ User Guide

101

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Lantronix manual XPress DR+ User Guide 101